CAREER: Combined Light and Carrier Localization in High-refractive Index Silicon Nanocrystal Structures: a Novel Approach for Si-based Lasers

职业：高折射率硅纳米晶体结构中的组合光和载流子定位：硅基激光器的新方法

• 批准号: 0846651
• 负责人: Luca Dal Negro
• 金额: $ 40万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0846651&HistoricalAwards=false
• 关键词: CAREER; Combined; Light; Carrier; Localization

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."This Faculty Early Career Development project aims to advance nanophotonics by developing a new class of light emitting devices exploiting aperiodic media.Intellectual Merit: This Faculty Early Career Development project aims to advance nanophotonics by developing a new class of light emitting devices that leverage Anderson light localization in deterministic aperiodic media for enhancing radiative transitions in silicon nanostructures. Differently from conventional photonic crystals approaches, the proposed research allows broadband engineering of density of states fluctuations, radiation patterns and localized fields in photonic-plasmonic nanostructures, enabling unprecedented control and enhancement of radiative processes on the nanoscale. The active material will consist of Er ions embedded in Si nitride superlattice structures. This material provides efficient excitation of Er resulting in 1.54ìm emission, which will couple with localized modes in aperiodic metal-dielectric arrays. This project explores for first time Anderson light localization in the context of on-chip light emission, and will result in the demonstration of photonic-plasmonic light-emitters susceptible of optical and electrical excitation. Broader impact: The successful demonstration of Si-based emitters and lasers will extend the reach of optical technologies into diverse fields, enabling low-cost applications of integrated optics in communication, processing, interconnects and optical biosensing. The establishment of this program at Boston University will contribute to a substantial education and outreach plan with the development of new courses for graduate (Nanophotonics) and undergraduate students (Science of Light), international symposia and short courses on Nanophotonics open to the general public and freely accessible online. These initiatives, combined with the largely interdisciplinary character of the proposed effort, will attract many young scientists to the exploding new fields of nanophotonics, plasmonics and light-localization in complex media.

“这个奖项是根据2009年美国复苏和再投资法案(公法111-5)资助的。”这个学院早期职业发展项目旨在通过开发一种利用非周期介质的新型发光设备来促进纳米光子学的发展。智力价值：这个学院早期职业发展项目旨在通过开发一种利用确定的非周期介质中的安德森光局部化来增强硅纳米结构中的辐射跃迁的新型发光设备来促进纳米光子学的发展。与传统的光子晶体方法不同，该研究允许对光子-等离子体纳米结构中的态密度涨落、辐射图案和局域场进行宽带工程，从而能够在纳米尺度上对辐射过程进行前所未有的控制和增强。活性材料将由镶嵌在氮化硅超晶格结构中的Er离子组成。这种材料有效地激发了Er，产生了1.54微米的发射，它将与非周期金属-介质阵列中的局域模式耦合。该项目首次在芯片上光发射的背景下探索安德森光的局部化，并将导致对光和电激发敏感的光子等离子体光发射器的演示。更广泛的影响：硅基发射器和激光器的成功展示将把光学技术的覆盖范围扩展到不同的领域，使集成光学在通信、处理、互连和光学生物传感中的低成本应用成为可能。在波士顿大学建立这一项目将有助于实施实质性的教育和外展计划，为研究生(纳米光子学)和本科生(光科学)开发新课程，举办国际研讨会，并向公众开放纳米光子学的短期课程，并在网上免费获取。这些举措，再加上拟议工作的主要跨学科性质，将吸引许多年轻科学家进入纳米光子学、等离子和光在复杂介质中的局部化等爆炸性新领域。